36results about How to "Automatically adjust output power" patented technology

The invention relates to an electromobile hybrid battery-driven system and belongs to a power-driven system for an electromobile, and the system can be used for solving the problems that the output load power of the existing solar battery and storage batter combined hybrid power source is fixed and the output power of a solar battery in the power source is unstable. The electromobile hybrid battery-driven system disclosed by the invention comprises a first storage battery, a vehicle-mounted charging system, a first direct current converter, a second storage battery, a second direct current converter, a solar battery pack, a third direct current converter, a permanent magnetic synchronous motor, a driving controller, a vehicle condition feedback device and an engine control unit. The electromobile hybrid battery-driven system disclosed by the invention can automatically regulate the output power of the solar battery pack and a storage battery pack according to requirement of load power, when the output power of the solar battery pack is insufficient, the storage battery pack is automatically started to supply power, thus optimal coordination of the output power is realized, the problems that the output load power of the existing solar battery and storage battery combined hybrid power source is fixed and the output power of the solar battery in the power source is unstable are solved, and the system can adapt to the power supply requirement of the electromobile.

The invention relates to a digital full-intelligent ultrasonic generator and an automatic frequency correcting method thereof. The ultrasonic generator comprises a power supply rectification filtration module, an ultrasonic wave output module, a control module, an ultrasonic wave source frequency generation module and an ultrasonic wave power device control module. The control module controls the ultrasonic wave source frequency generation module to generate ultrasonic wave original frequency signals which are processed by a driving signal dead area time generation module to output to the ultrasonic wave power device control module, and then the ultrasonic wave power device control module outputs the frequency signals to the ultrasonic wave output module. The method comprises wideband rapid frequency scanning, narrow band accurate frequency tracking and full-range tracking resonant frequency during stagnation point working. The digital full-intelligent ultrasonic generator is accurate in frequency, greatly improves work efficiency of the ultrasonic generator, and can effectively avoid self-excitation damage of power module devices. The method can effectively avoid drifting of resonant frequency points and improve resonance efficiency of the ultrasonic generator.

The invention relates to a hydraulic type bulk feed transportation vehicle. A power takeoff device is driven by the output power of an automobile gearbox; a high-pressure oil pump is transmitted to drive a hydraulic system; the high-pressure oil pump is connected with a distributing valve through a pipeline; three output ends of the valve are connected with a corner hydraulic motor, a lifting oil cylinder and a horizontal discharging hydraulic motor, vertical discharging hydraulic motor and movable discharging hydraulic motor in serial connection respectively; a discharging device consists of a horizontal discharging system, a vertical discharging system and a movable discharging system which are spiral conveyors driven by the hydraulic motor; the horizontal discharging system is arranged inside a tank body; the vertical discharging system is positioned outside the tank body; a feed port and a discharge port of the vertical discharging system are communicated with a discharge port of the horizontal discharging system and a feed port of the movable discharging system respectively; the lifting oil cylinder and a cylinder body of the movable discharging system are connected to realize up-and-down lifting; and the discharging device is also provided with a corner system for producing horizontal deflexion of the movable discharging cylinder body. The hydraulic type bulk feed transportation vehicle has the advantages of reducing packaging cost, saving feed, avoiding causing pollution in the loading and unloading and transportation links.

The invention relates to an output-power-adjustable active PFC+ bridge-type soft switch power converter and a conversion method thereof, wherein the output-power-adjustable active PFC+ bridge-type soft switch power converter is completely different from a present LLC resonant mode and a phase shift full-bridge soft switch mode and suitable for a bipolar transistor applied soft switch mode, and especially a medium and high power efficient switching power supply is formed by the output-power-adjustable active PFC and the power converter. The output-power-adjustable active PFC is used for PFC control and output power adjustment. The power converter is used for energy conversion and separation from the PFC to load and output of sampling feedback to the active PFC. The advantages are that the implementation cost is low, development is simple and performance is reliable; and the power conversion efficiency is more than 90%, and output power of the power supply converter can be automatically adjusted according to the change of the load.

The invention discloses a hair cutter capable of adjusting the output power of a motor automatically, which comprises a main body and a cutting head, wherein the cutting head comprises a fixed blade component, a movable blade component, a spring bracket and a cutter pushing rod, wherein the main body is provided with a motor, a cell and a charging component, and is characterized in that: a printed circuit board is arranged in the main body; the printed circuit board is provided with a sensor and a chip; and the upper part of the main body is provided with a display panel. The hair cutter can transmits the resistance generated by the output power of the motor when the movable blade component and the fixed blade component cut hairs to the chip to allow the chip to determine the length and density of the hairs according to the size of the resistance, so that the output power of the motor can be changed, the phenomenon that the hairs are clipped due to power shortage is avoided, the related data is reflected to the user through the display panel and understood by the user immediately to avoid misoperation of the user.

The invention discloses a full-automatic smelting control system and a control method for polycrystalline silicon. The system structurally comprises a programmable logic controller (PLC), a medium-frequency power distribution board, a polycrystalline silicon smelting crucible temperature device, a current power and temperature digital display device, a sensor and a 4-20MA current signal generator. The system and the method have the advantages that firstly, a mode of whole-process temperature measurement and heating on a wall of a crucible by a thermocouple of a medium-frequency induction furnace is adopted, process-related power and frequency of a medium-frequency power supply and real-time smelting temperature of polycrystalline silicon can be all converted into digital signals through the sensor, the digital signals are transmitted to a PLC system, the PLC system can perform PID (proportion integration differentiation) regulation on the parameters according to process requirements of polycrystalline silicon, and an output result can accurately control various performance indexes of polycrystalline silicon, so that the rejection rate of products is greatly reduced; secondly, the labor intensity is reduced; thirdly, the production efficiency is improved; fourthly, potential safety hazards are reduced.

The invention provides an emergency power supply system based on a fuel cell. The emergency power supply system comprises a fuel cell module, a power battery module, a control system and a direct current bus, wherein the fuel cell module serves as an emergency power supply to supply power to a load, the power battery module is used for providing a starting power supply when the fuel battery moduleis started and cooperating with the fuel cell module to perform power adjustment, the control system is used for controlling the system, the fuel cell module and the power battery module are electrically connected to the direct current bus, and in the operation process of the fuel cell module, the load output power is monitored in real time, and is transmitted to a fuel cell controller through aCAN bus to serve as the output set power of the fuel cell module. According to the invention, the output power of the fuel cell can be automatically adjusted according to the load, and the system is environment-friendly in use, low in noise and movable.

The present invention discloses a laser pollution-removing system and its pollution-removing method. Said method includes the following steps: providing a laser transmission probe which is used for setting the parameters of said laser transmission probe and producing a laser beam; and locating alignment relation ship between laser beam and junction of circuit board. The invented laser pollution-removing system for removing pollutant on the several junctions of a circuit board includes the following several portions: a laser transmission probe for producing a laser beam; a placing platform for fixing a circuit board with several junctions; and a locator for locating alignment relationship between laser beam and junction.

The invention discloses a control method of a mowing machine and the mowing machine, when the mowing machine is in a dynamic mode, the control method of the mowing machine comprises the following steps: according to previous mowing data, obtaining initial current limiting values and maximum rotating speeds of a cutting knife motor and a walking motor; the input current of each motor is monitored, and whether the input current of each motor is smaller than the current limiting value or not is judged; when the input current of the walking motor or the cutting knife motor is continuously equal to or larger than the current limiting value, the current limiting values and the maximum rotating speeds of the walking motor and the cutting knife motor are reset according to the current slope where the mower is located and the maximum discharging capacity of the battery pack, so that it is guaranteed that the mower works normally when encountering a fault. According to the control method of the mower and the mower provided by the invention, the whole mower is in an optimal performance state.

The invention provides a hydraulic control system for a ditcher, and belongs to a mechanical hydraulic engineering device. The system comprises a hydraulic oil tank, a walking unit, a ditching unit, an excavation unit, a ditching adjustment unit and a heat dissipation unit. The system relates to a whole hydraulic control and driving scheme in the ditcher, and under the control of the scheme, the functions of independently controlling caterpillars on two sides of the ditcher, enabling a ditching device and an excavation device to work independently, flexibly adjusting the whole body angle and adjusting the ditching depth can be realized, thereby greatly enhancing the ditcher passing ability on one hand, and greatly enhancing the adaptability of the ditcher to the non-even pavements so as toimprove the ditching efficiency and ensure the ditching quality on the other hand.

The invention relates to the technical field of accessories of a printing machine, in particular to a system capable of automatically controlling temperature of an oven of a printing machine. The system comprises a draught fan, a heater and the oven which are sequentially connected; the system further comprises a temperature measurement module, a pressure measurement module and a central processing unit, the input end of the temperature measurement module and the input end of the pressure measurement module are connected with the oven, and collected signals are transmitted to the central processing unit; and the central processing unit transmits the processed signals to the heater and the draught fan. Through the adoption of the temperature measurement module, the pressure measurement module and the central processing unit, the temperature and the air amount in the oven can be automatically adjusted in real time according to needs, the efficiency of the oven is improved, energy resources are saved, losses are reduced, and the automatic constant temperature control is achieved.

The invention relates to an aerating sewage treatment system and a multi-parameter fuzzy control method thereof and aims to provide the aerating sewage treatment system and the multi-parameter fuzzy control method thereof. According to the system, photovoltaic cells are taken as energy sources, and a direct-current motor and an aeration machine are taken as executing mechanisms. The operation modeof the system comprises steps as follows: sewage flow is estimated by detecting liquid level values of a branch sewer and a main pipe as well as transmitted time difference; initial rotating speed ofthe motor is calculated according to the flow as well as conductivity value and turbidity value of a water inlet; after the system operates for a period of time, the conductivity value and the turbidity value of a water outlet are detected, a fuzzy control rule table is searched according to total quantity and change rate, real-time rotating speed of the motor is determined, and energy waste is avoided.

The invention relates to a plasma jet device comprising a shell. A waveguide and an inner conduit are installed in the shell. One end of the waveguide is connected with a microwave power supply. A cavity is arranged between the inner conduit and the waveguide. The cavity is provided with an air inlet which can be closed and opened. The shell is provided with a nozzle which is conducted with the inner conduit. A telescopic metal sheet is arranged at the nozzle. The metal sheet is in contact with a temperature sensor. The temperature sensor is connected with a controller. The controller is alsoconnected with the power supply and an alarm respectively. Compared with the devices in the prior art, the size of the plasma jet is positively relate to the output power of the power supply, the telescopic metal sheet, the temperature sensor and the controller are arranged and the plasma jet flux can be calculated and the output power of the power supply can be automatically adjusted so that thepurpose of autonomously adjusting the plasma jet size can be realized and the stability of the output plasma jet can be guaranteed.

The invention discloses an ultrasonic aromatherapy device with the constant spraying amount and relates to the technical field of ultrasonic aromatherapy. The device comprises a water tank, a main control module, an ultrasonic frequency sweeping module and a water level detection module, the main control module is connected with the ultrasonic frequency sweeping module and the water level detection module separately, and the water level detection module is used for detecting the height of the water level in the water tank. According to the ultrasonic aromatherapy device with the constant spraying amount, the height of the water level in the water tank is detected through the water level detection module, the spraying output power is automatically adjusted, the spraying amount is adjusted,and the stable spraying speed is achieved.

The invention discloses a traditional Chinese medicine intelligent main and collateral channel moxibustion permeameter. The moxibustion permeameter comprises a control panel, a heart rate detection sensor, a respiratory pressure detection sensor, a pulse detection sensor, a respiratory rate detection sensor, dynamic electrocardiogram equipment, a data processor, a controller and a moxibustion permeation head. The dynamic electrocardiogram equipment is used for receiving the heart rate, detected by the heart rate detection sensor, of a user, the respiratory pressure, detected by the respiratory pressure detection sensor, of the user, the pulse, detected by the pulse detection sensor, of the user and the respiratory rate, detected by the respiratory rate detection sensor, of the user and transmitting received data to the data processor. A heart rate threshold value, a respiratory pressure threshold value, a pulse threshold value and a respiratory rate threshold value are stored in the data processor, the data processor compares the received data with the corresponding threshold values and outputs different control signals to the controller according to the comparison result, and the controller automatically controls the output power, the frequency and the running time of the moxibustion permeation head according to the received different control signals.

This invention discloses one intelligent control system, suited to the electronic bicycle, that automatically adjusts the speed of the electronic bicycle under three riding conditions of PAP , VPC and DD, according to whether the rider really steps on or not and rotates the control handles or not. Its characteristic is that the system can automatically judge whether the rider really steps on or not according to the contrast between the pedaling speed and the whole speed, and that the system makes out the size of driving motor power according to the size of signals that the speed sensor passes back. When the rider really steps on, he is in PAP condition without rotating the control handles, or the rider is in VPC condition after he rotates the control handles to regulate the output power of the one-chip drive motor. While the rider doesn't really step on, he can rotate the control handles to regulate the output power of the one-chip drive motor and enters DD condition. Through judging whether or not the rider rotates the control handles and really steps on, the system can automatically switch the three kinds of running conditions of regular man-machine assistance ratio, controllable man-machine assistance ratio and all-control electric driving.

The invention discloses a method and device for self-adapting the light source parameters of a distributed optical fiber sensing system. , adjust the optical pulse repetition frequency; Step S2, calculate the standard deviation of the point scattering signal S(L-m)~S(L-n) at the end of the sensing fiber in t measurement periods, and filter to obtain the maximum value of the standard deviation σ max ; Step S3, set σ max and set the default value σ 0 Compare; step S4, if σ max >σ 0 , then increase the output power of the light source, and repeat steps S2-S3 until σ max ≤σ 0 . The invention can monitor the standard deviation of the signal at the tail end of the sensing fiber in real time. The repetition frequency of the pulsed laser is modified in real time by the microcontroller to optimize the system response time. The measured standard deviation is compared with the preset standard deviation. When the measured standard deviation is found to be less than the preset value, the output power of the light source is increased through the microcontroller to improve the signal-to-noise ratio and eliminate the performance degradation caused by the increase in fiber loss.

The invention relates to the field of LED display screen detection, and discloses an LED display screen fault self-detection method and an LED display screen fault inspection method. A power detection element is used as a detection source, the existing LED display screen circuit structure is not changed, the method is simple and easy to implement, and the production cost is not increased; LED lamp bead faults can be detected point by point, and output faults of output pins of a constant current / constant voltage chip can be detected; output or input faults of two adjacent constant-current / constant-voltage chips can be detected, faults of the first constant-current / constant-voltage chip of the LED control card and the LED universal unit module can be detected, output and input faults of two adjacent LED universal unit modules can be detected, and output power of a power supply can be automatically adjusted when faults of a part of the power supply are detected or the temperature of a working environment is changed; and the fault detection result is uploaded to an external network platform or network equipment.

The invention relates to the field of power exoskeletons and discloses a power exoskeleton. The power exoskeleton comprises a vital sign measuring device used for detecting vital signs of a user, an actuator used for driving the power exoskeleton to move along with the user, an output device used for transmitting information to the user, and a controller connected with the vital sign measuring device, the actuator and the output device. The controller is electrically connected with the actuator and the output device, the battery is electrically connected with the controller, and the controller has an initialization mode and a working mode. The controller guides the current user to perform a first activity for a first preset time through the output device and controls the actuator to continuously output first preset power, and then the controller obtains reference vital sign information of the current user through the vital sign measuring device; in the working mode, the controller obtains the current vital sign information of the current user through the vital sign measuring device and then controls the output power of the actuator according to the reference vital sign information and the current vital sign information.

The invention provides a high-elasticity-coefficient granular material drying device, and relates to the field of drying equipment, the high-elasticity-coefficient granular material drying device comprises a drying box, heating pipes, an air inlet box and an air outlet box, the drying box is provided with an upper opening and a lower opening, a plurality of heating pipes are arranged in the drying box, the heating pipes are parallel to one another and are staggered up and down in the vertical direction, and a gap is reserved between every two adjacent heating pipes; the air inlet box and the air outlet box are arranged on the two side walls of the drying box correspondingly, the heating pipe is of a hollow structure, and the two ends of the heating pipe penetrate through the drying box to enter the air inlet box and the air outlet box. An air inlet and an air outlet are respectively formed in the air inlet box and the air outlet box; the multiple heating pipes are transversely arranged and vertically staggered, so that granular materials bounce and fall among the heating pipes, and the effects of three-dimensional drying and moving drying are achieved.

The invention relates to an electromobile hybrid battery-driven system and belongs to a power-driven system for an electromobile, and the system can be used for solving the problems that the output load power of the existing solar battery and storage batter combined hybrid power source is fixed and the output power of a solar battery in the power source is unstable. The electromobile hybrid battery-driven system disclosed by the invention comprises a first storage battery, a vehicle-mounted charging system, a first direct current converter, a second storage battery, a second direct current converter, a solar battery pack, a third direct current converter, a permanent magnetic synchronous motor, a driving controller, a vehicle condition feedback device and an engine control unit. The electromobile hybrid battery-driven system disclosed by the invention can automatically regulate the output power of the solar battery pack and a storage battery pack according to requirement of load power, when the output power of the solar battery pack is insufficient, the storage battery pack is automatically started to supply power, thus optimal coordination of the output power is realized, the problems that the output load power of the existing solar battery and storage battery combined hybrid power source is fixed and the output power of the solar battery in the power source is unstable are solved, and the system can adapt to the power supply requirement of the electromobile.

This invention discloses one intelligent control system, suited to the electronic bicycle, that automatically adjusts the speed of the electronic bicycle under three riding conditions of PAP , VPC and DD, according to whether the rider really steps on or not and rotates the control handles or not. Its characteristic is that the system can automatically judge whether the rider really steps on or not according to the contrast between the pedaling speed and the whole speed, and that the system makes out the size of driving motor power according to the size of signals that the speed sensor passes back. When the rider really steps on, he is in PAP condition without rotating the control handles, or the rider is in VPC condition after he rotates the control handles to regulate the output power of the one-chip drive motor. While the rider doesn't really step on, he can rotate the control handles to regulate the output power of the one-chip drive motor and enters DD condition. Through judging whether or not the rider rotates the control handles and really steps on, the system can automatically switch the three kinds of running conditions of regular man-machine assistance ratio, controllable man-machine assistance ratio and all-control electric driving.

The invention belongs to the technical field of wind power converters, and particularly relates to a power module and method of a wind power converter, and the power module comprises the wind power converter which is connected with an IGBT module and an intelligent control module, and the wind power converter is used for providing a conversion function for wind power equipment; the IGBT module is connected with a power distribution side and the power adjusting module, and the IGBT module is used for converting direct current generated by the wind power equipment into alternating current and inputting the alternating current into the power distribution side; and the intelligent control module is connected with a power adjustment module, and the intelligent control module is used for sending control information to the power adjustment module according to the working condition of the wind power converter so as to control the working adjustment module to work. According to the power module of the wind power converter, the output power of the wind power converter can be automatically adjusted, the fluctuation condition of the power is reduced, when the wind power converter breaks down, the wind power converter is automatically turned off, fault information is recorded, and maintenance is convenient.

The invention discloses a circulating cooling computer, and belongs to the field of electronics. The computer comprises a standby water tank, a main water tank, an electromagnetic valve F1, an electromagnetic valve F2, a water pump M1, a speed regulation water pump M2, an electromagnetic valve F3, a flow velocity sensor LL1, a temperature sensor T1, an electromagnetic valve F4, a heat dissipationpipe, a control panel and a USB interface, and solves technical problems of an overlarge water tank and incapability of automatically regulating power in the prior art. The water tank is divided intothe two water tanks, whether cooling water of the standby water tank is adopted or not is automatically adjusted according to a temperature, the size of the single water tank is reduced, the water tanks can be installed separately, and the requirement for the space of a computer case is low. Output power of the water cooling system is automatically adjusted, and according to the output power of apower supply of the computer, output of the water pump is automatically adjusted so that the output of the computer power supply cannot be overloaded.

The invention relates to a control system and a control method in the technical field of wind power generation, and specifically relates to a coordination control system and method based on current source type multi-terminal DC wind field unloading. The system comprises a permanent magnetic wind power generator, a diode rectifier, a current source type DC-chopper and a current source type inverter. Each blower fan unit is connected in parallel with the same DC bus line through the DC-chopper and collected DC power is accessed into a network in an inverter mode through the current source type inverter. A DC-chopper control system is parallel connected with the input side of the DC-chopper. Propeller pitch control, blower fan maximum power control, DC side voltage control and DC-chopper control are combined into the coordination control method so that a wind electric power field can realize self adjustment through the coordination control method for satisfying the power demand of an electrical network for the wind electric power field.

The invention discloses a ribbon heater capable of controlling temperature automatically and used for eliminating an electromagnetic field. The ribbon heater comprises a heating element, a first insulating layer, a first metal net and a second insulating layer, wherein the heating element is provided with a first wire and a second wire, and the first insulating layer, the first metal net and the second insulating layer are sequentially arranged on the outer layer of the heating element. A third insulating layer wraps the outer side of the second insulating layer. A second metal net is arranged between the second insulating layer and the third insulating layer. The second metal net is connected with the first wire through a first connecting wire. The rear end of the second metal net is connected with the first wire through a second connecting wire. The rear end of the first metal net is connected with the second wire through a third connecting wire. A leading wire is led out from the front end of the first metal net, and a power supply is connected to the front end of the leading wire and the front end of the first wire. The ribbon heater capable of controlling the temperature automatically and used for eliminating the electromagnetic field has the advantages of being simple in structure, easy to install and maintain, safe, reliable, uniform in temperature, wide in usage, long in service life, capable of automatically adjusting output power and the like.

The invention discloses a hair cutter capable of adjusting the output power of a motor automatically, which comprises a main body and a cutting head, wherein the cutting head comprises a fixed blade component, a movable blade component, a spring bracket and a cutter pushing rod, wherein the main body is provided with a motor, a cell and a charging component, and is characterized in that: a printed circuit board is arranged in the main body; the printed circuit board is provided with a sensor and a chip; and the upper part of the main body is provided with a display panel. The hair cutter can transmits the resistance generated by the output power of the motor when the movable blade component and the fixed blade component cut hairs to the chip to allow the chip to determine the length and density of the hairs according to the size of the resistance, so that the output power of the motor can be changed, the phenomenon that the hairs are clipped due to power shortage is avoided, the related data is reflected to the user through the display panel and understood by the user immediately to avoid misoperation of the user.

The invention relates to the field of LED display screen detection, and discloses a power detection circuit and an LED display screen self-checking inspection system. Compared with the prior art, the power detection circuit provided by the invention has the following advantages that a power detection element is adopted as a detection source, the existing LED display screen circuit structure is not changed, the power detection circuit is simple and easy to implement, and the production cost is not increased; LED lamp faults can be detected point by point, and constant current / constant voltage chip pin output faults can be detected; the system also can detect the output or input faults of two adjacent constant current / constant voltage chips, the faults of the first constant current / constant voltage chip of the LED control card and the LED general unit module, the output and input faults of two adjacent LED general unit modules, and the automatic adjustment of the output power of the power supply when the fault of a part of the power supply or the change of the temperature of the working environment is detected.